Rubber bag



April 17, 1934. H. H. MCGEE 1,955,008

Patented Apr. 17, 1934 UNITED STATES PATET oFFicE RUBBER BAG necticutApplication March 4, 1930, Serial No. 432,994

4 Claims.

This invention relates to rubber articles and more particularly torubber bags, such as water bottles and syringe bags.

Heretofore water bottles, syringe bags and similar articles have beenmade in the form of a flat bag which, when left in View, is unsightlyand which cannot be readily packed or folded up into a convenientpackage for either storage or for convenience in packing the article forpurposes of traveling or other reasons.

While the Water bottles, syringe bags and like articles heretofore madehave been foldable due to the iiexibility of the material, such foldingis done only at the expense of an excessive deformation of the rubber atthe fold, which deformation tends to cause and does cause the bag tocrack or break at that point, thereby rendering it useless.

It is an object of this invention to provide a novel bag of the waterbottle or syringe type which is so shaped that it may be readily foldedinto a compact convenient package of pleasing appearance Withoutdetrimental deformation in the rubber.

Further objects and advantages of the present invention will appear fromthe following detailed description taken in connectionvvith theaccompanying drawing, in which Figure 1 is a perspective View of a bagembodying the principles of my invention;

Fig. 2 is a perspective view of the bag of Fig. 1 shown in foldedcondition;

Fig. 3 is a perspective View of a mold insert used in making the bag ofmy invention;

Fig. 4 is a cross sectional view through a mold for making the articleof this invention;

Fig. 5 is a cross sectional view of the mold taken on the line 5-5 ofFig. 4; and

Fig. 6 is a cross sectional View of the mold taken on the line 6-6 ofFig. 4.

According to my invention, the bag 1 is made of rubber or like materialof the usual compound Well known in the art. The bag 1 is so formed,shaped, or molded as to have a front face and a back face spaced apartfrom, and parallel to, each other, and such bag 1 has one or moreportions 2 disposed in planes at an angle to the plane of a remainingportion 3. The portions 2 and 3 are parts of the bag 1 and are connected50 by a bend 4 which is also part of the bag. The front and back facesof the bag l are creased as at 5 at the joining point of the portions 2and 3 with the bend 4, or if desired, the creases 5 may be replaced by acontinuous curve which would thus join the portions 2 and 3 with thebend 4. The creases 5 preferably extend transversely of the length ofthe faces of the bag 1. The bend 4 in the material of the bag provides asufficiently preformed curvature in the bag at that point, so that uponbending the portions 2--2 into the positions shown in Fig. 2, thematerial of the bag at the bends 4 is not detrimentally deformed.

The extent and the arrangement of the bends 4 in their preformedcondition is such that when the bag is in folded condition, as shown inFig. 2, the rubber or other material of the bag is only slightlydeformed. Suitable means for securing the bag in its folded position areprovided which may conveniently take the form of the button 6 and eyelet7. The button 6 may be secured to the body of the bag in any suitablemanner as by adhesives, and the buttonhole '7 may be formed in the bageither during the molding or by shaping of the bag afterward. Any otherdesired means for securing the bag in folded condition may be employed.

Where the bag is of the water bottle or syringe type, the hoseconnections 8 customarily supplied therewith may be conveniently coiledwithin the folds of the bag as shown at 9, as in Fig. 2.

Where the hose is attached to the bag, a curved connection 10 may beprovided so as to render unnecessary any sharp bends in the hose inarranging it Within the confines of the folded bag. Other appurtenancesof the bag, such as the nozzles 11 may be secured in place on the tab 12insertion through slits 13 formed in the tab 12, which appurtenances areconveniently hidden from View when the bag is in folded position asshown in Fig. 2.

From the above description it is seen that a construction of a bag ofthe Water bottle or syringe type has been provided which may be foldedinto a convenient package of pleasing appearance and of a size and shapereadily adapted for convenience in handling, and which also serves as acontainer and cover for the various appurtenances usually supplied withsuch an article.

While the article of this invention may be formed in any desired Way,such as by cutting out the parts and assembling the parts in bag shapeby uniting the parts adhesively, it is preferred to form the bag bymolding in a mold such as shown in Figs. 3, 4, 5 and 6.

The mold is provided with an insert 20 of metal or other suitablematerial shaped to conform to the cavity of the mold and around Whichthe rubber or other material of the article extends When in the mold.The mold proper is formed of lower and upper parts 21 and 22,respectvely, which interit along a line extending medially of the sideface of the article so that the flash is formed along the side or edgeof the article or bag. The mold shown in the drawing is specificallydesigned for forming a bag of the syringe type, such as shown in Fig. l,and accordingly the insert 20 is provided with a projection 23 ttinginto recess 24 of mold member 22 so as to form the opening in the bottomof the bag. In addition the insert 20 is provided with the rounded endsurface 25 which fits snugly against a corresponding surface 26 of moldmember 22, thereby forming the opening in the top of the bag. The rubberor like material 2'7 of which the article is formed surrounds the insert20 in the cavity formed by the mold members 21 and 22 as shown at 27 inthe drawing. Where the material of which the bag is vulcanizable orotherwise curable, it may be so treated by the application of heat andpressure for a suitable length of time according to the nature of thematerial.

While a specific form of the invention has been herein disclosed by wayof illustration, it is not intended so to limit the invention, inasmuchas any variations from the details thereof may be made without departingfrom the spirit and scope of the invention which is defined in thefollowingclaims.

Having thus described my invention, what I claim and desire to protectby Letters Patent is:

l. A rubber bag for containing liquids comprising a plurality ofportions each of which cornprises a pair'of spaced sheets of rubber ofmaterial width and relatively narrow connecting side walls, one of saidportions having material length to serve as a main body portion, shorterportions connected at the ends of the main portion in angular relationthereto, other portions' connected in angular relation to the secondnamed portions and having sufficient length to overlap, there beingcreases in the rubber at the joints between portions to facilitatefolding, and cooperating securing means carried by the overlappingportions whereby the second and third named portions may be folded aboutthe main portion and secured for forming a compact package.

2. A rubber bag for containing liquids comprising a main body portionhaving connected iiuid confining walls, a pair of fiuid confining endportions connected thereto in angular relation, another fluid confiningportion connected to each end portion in angular relation, the lastnamed portions being of sufficient length to overlap, the severalportions being of rubber material and having creases at theirconnections to facilitate folding, and cooperating securing meanscarried by the last named portions whereby the end and last namedportions may be folded about the rmain portion and secured as a compactpackage.

3. A rubber bag for containing liquids comprising a main body portionhaving connected fluid confining walls, a pair of fluid confining endportions connected thereto in angular relation, another fiuid confiningportion connected to each end portion in angular relation, the lastnamed portions being of suiiicient length to overlap, the severalportions being of rubber material and having creases at theirconnections to facilitate folding, rappurtenance securing means carriedby one of said portions, and cooperating securing means carried by thelast named portions whereby the end and other portions may be foldedabout the main portion and secured as a compact package.

4. A rubber bag for containing liquids comprising a main body portionhaving connected fluid confining walls, a pair of fluid confining endportions connected thereto in angular relation and having well 'definedspaced creases, another fluid coniining portion connected to each endportion in angular relation, the last named portions being of suliicientlength to overlap, the several portions being of rubber material, andcooperating securing means carried by the last named portions wherebythe end and other portions may be folded about the main portion andsecured as a compact package.

HOWARD H. MCGEE.

